1217 	struct io_sr_msg *zc = io_kiocb_to_cmd(req, struct io_sr_msg);  in io_send_zc_cleanup()  local
1222 	if (zc->notif) {  in io_send_zc_cleanup()
1223 		io_notif_flush(zc->notif);  in io_send_zc_cleanup()
1224 		zc->notif = NULL;  in io_send_zc_cleanup()
1233 	struct io_sr_msg *zc = io_kiocb_to_cmd(req, struct io_sr_msg);  in io_send_zc_prep()  local
1237 	zc->done_io = 0;  in io_send_zc_prep()
1246 	notif = zc->notif = io_alloc_notif(ctx);  in io_send_zc_prep()
1254 	zc->flags = READ_ONCE(sqe->ioprio);  in io_send_zc_prep()
1255 	if (unlikely(zc->flags & ~IO_ZC_FLAGS_COMMON)) {  in io_send_zc_prep()
1256 		if (zc->flags & ~IO_ZC_FLAGS_VALID)  in io_send_zc_prep()
1258 		if (zc->flags & IORING_SEND_ZC_REPORT_USAGE) {  in io_send_zc_prep()
1270 		if (unlikely(zc->flags & IORING_RECVSEND_FIXED_BUF))  in io_send_zc_prep()
1274 	zc->len = READ_ONCE(sqe->len);  in io_send_zc_prep()
1275 	zc->msg_flags = READ_ONCE(sqe->msg_flags) | MSG_NOSIGNAL | MSG_ZEROCOPY;  in io_send_zc_prep()
1276 	zc->buf_index = READ_ONCE(sqe->buf_index);  in io_send_zc_prep()
1277 	if (zc->msg_flags & MSG_DONTWAIT)  in io_send_zc_prep()
1282 		zc->msg_flags |= MSG_CMSG_COMPAT;  in io_send_zc_prep()
1384 	struct io_sr_msg *zc = io_kiocb_to_cmd(req, struct io_sr_msg);  in io_send_zc()  local
1397 	    (zc->flags & IORING_RECVSEND_POLL_FIRST))  in io_send_zc()
1400 	if (!zc->done_io) {  in io_send_zc()
1406 	msg_flags = zc->msg_flags;  in io_send_zc()
1414 	kmsg->msg.msg_ubuf = &io_notif_to_data(zc->notif)->uarg;  in io_send_zc()
1422 			zc->len -= ret;  in io_send_zc()
1423 			zc->buf += ret;  in io_send_zc()
1424 			zc->done_io += ret;  in io_send_zc()
1434 		ret += zc->done_io;  in io_send_zc()
1435 	else if (zc->done_io)  in io_send_zc()
1436 		ret = zc->done_io;  in io_send_zc()
1443 		io_notif_flush(zc->notif);  in io_send_zc()